Real Da Vinci Code Discovered In Mona Lisa's Eyes (gizmodo.com)

Same story, different sources:

http://news.ycombinator.com/item?id=2002514 - washingtonpost.com

http://news.ycombinator.com/item?id=2003223 - telegraph.co.uk - most comprehensive article.

http://news.ycombinator.com/item?id=2003882 - killed

No comments on any.

"The other letters are B or S" -- are we sure it's not B AND S?